In a country house of Galicia (Spain), Teresa and Fernando, beset by their economic situation, rent rooms to Mr. Morell and his niece Lina, who are looking for a quiet place to rest. Everything seems normal but, at night, when the doors of the rooms are closed, it seems as if uncle and niece apparently practice spiritualism.
| Directing | Antonio Román | Director |
| Crew | Heinrich Gärtner | Cinematography |
| Art | Francisco Escriñá | Set Decoration |
| Art | Francisco Escriñá | Production Design |
| Sound | José Muñoz Molleda | Original Music Composer |
| Writing | Antonio Román | Screenplay |
| Writing | Pedro de Juan | Screenplay |
| Editing | Juan J. Doria | Editor |
| Writing | Wenceslao Fernández Flórez | Story |